I don't see these movie because I'm expecting to see Citizen Kane, but because I want SUPER FUN COMICS #1 HERO TIME.
I was highly entertained. The lack of character dev is mostly because each of these guys didn't get their own movies as a lead in. Hawkeye and Black Widow didn't get much dev in Avengers as its an ensomble film.
That being said, I don't really care. I'm just happy to get movies targeted at me.
Still better than Superman, which entertained me as well.